Combined cooker and mixer



4 p 1,642,445 p 13 1927' A. JACOBSON COMBINED COOKER AND MIXER Filed Jan. 13. 1926 3 Sheets-Sheet l I fiarezu $005303,

Sept. 13, 1927. 1,642,445

A. JAcoBsoN COMBINED COOKER AND MIXER Filed Jan. 13, 1926 :5 Sheets-Sheet 2 WA INVENTOR) flizdrew kaason,

Sept. 13, 1927. 1,642,445

H A. JACOBSON I COMBINED COOKER AND MIXER Filed Jan. 13, 1926 3 Sheet-Sheet 3 INVENTOR; flwrew Jawzsm Patented Sept. 13, 1927.

PATENT oFFlca.

.ANDREWJACOB SON, OF LOS A NGELES, CALIFORNIA.

ooiv s rnnn COOKERVAND MIXER I Application filed JanuaiylB, 1926. Serial No 81,057.

This invention relates to food preparing apparatus and more especially to a machine" 7 for general commercial, v institutional and domestic use intlie mixing of'dough or, other variousbatters, soups; or other dry or wet substances.

An obj ectof the invention is to provide a machine' mixer and cooker of considerable capa'city,-of substantial structure and practical and effective operationfor the mixing of doughcompounds or otherdesired food substances. A further object is to provide for the readyh'eating or quick cooling of preparations in the course of treatment And a further object isto provide a combined batch mixer and double boiler cookerflf I An'additionalohject is to provide for the ready 1 discharge of the treated 'or preparation from the machine.

'Another ob'ect is' to' provideforthe'ready interchange of one or"another "of fvarious types of heaters, stirrers, mixers, 'whlppers' or agitators from a set adaptedfor use, severally, in the machine; f I

Also, it'is an object to provide a heating or cooling vessel adapted to be easily and I quickly-shifted to and from aneftective po-- sition with respect to a 'tiltable tank so that the latter'may operated atwill inde pendently ofthe vessel; an object being to disassociate the circulating means from the tank so as) tov avoid unnecessarily. added parts whose weight adds to the operating resistance and increasecomplications of'parts,

andcost of manufacture thereof.

' More objects andadvantages will be'made' manifest in the following Specification of apparatus, illustrated herewith, incorporating an embodiment of the invention; it being understood that modifications, varia ,tionsj and adaptationsmay be resorted to Within the spirit and principle jofthe invention'as it is' here claimed;

Figure 1 is a longitudinal, vertical sec tion of i the machine "the water, circulating vessel being lowered;

Figure 2fis a transverse, vertical section; the water vesselbeing raised, asin effective position, 1 l V Figure3is a vertical cross-sectionof the tank-infdischarging position. I I

Themachine' comprises a suitable, stout frame-Work F upon which all of the parts are mounted a an organized unit thus enabling erecting, storing, shipping and installing as a complete structures free from extraneous and overhead supports. In other words the apparatus is wholly selfcontained. 7 V

On one side of the machine is a motor and change speed gear plant M havinga driven spindle 2 projecting from a bearing 3 and presenting a horn 4 to detachably receive. c

Theshaft 7 isshiftable endwiseby-suit able means, as a lever 12 engagingv a collar 13 pinned on the shaft, which has grooves 1415 to receive "a spring-bolt 16 whose function'is to latch the shaft rotatively in either inner or outer position.

'VVhen in inner position the shaft' interlooks with the element B and as this isirotated power is transmitted by it to the sp n edpulley 11 and from this power may i be transmitted by a shiftable belt 17 to a pulley 18 tight on'a countershaft 19, which has a, loose pulley 20 opposite to the loose pulley 10.

The 'various ibeaters B (which are designed to operate upon various substances) are-each adapted to pass into a receiver or what is, by thetrade, called a tank I" which i sufiicientlylonger than the beater,

from hub 5 to hub 6,- to permit the latter to be shifted endwise' onto the horn 4 while the shaft 7 is in outer position. As soon as the beater B has been hung on the horn 4 the shaft 7 is pushed in to interlockin' the socket-hub 6, after which the motor plant 'M may be started and the shaft 7 driven by the beater. i

The tank T has coaxial trunnion sleeves 25 v fitting upon hollow trunnions 3 and 8 which 'form parts of bearings 38.- To tilt the tank T-on its trunnions it is provided with'a gear 26 engaged by a worm 27 which maybe turned at will by a hand whee128, or otherwise'. i

The tank is open at the top and is closeable by a cover 30 which is arched on the axis of the trunnions 3--S and vertically movable along a spout 31 located at the bottom of a sitter hopper 32. This hopper has a gate 33 below a screen M over which sweeps a paddle device 35. This device is mounted upon the shaft 19. 'lhere'iore, if flour or other material is poured into the hopper it will be sitted past the paddle, which can be rotated at will by throwing the belt shifters to shift the belt onto the tight pulleys 'l'l-lT. while the heater 1% being rotated to etlect a mix of the batch in the tank T. The sitter can be cut out of operation at any time by merely throwing the belt 19 over to the loose pulleys, operation ot the beater continuing as may he do sired for mixing.

The bottom of the tank T has a. clean out hole 40, screened at ell and having a movable closure 42.

To apply heatto the. mixer to facilitate preparation of some kinds of batches, and also for the purpose oi enabling the cookin; o't foods, as mush or soups, in the tank. I provide a vessel V having an open top which closely conforms to the horizontal section oi the tank T, which here has a. semieylindrical bottom.

The vessel V is adapted to be raised from a lower position, clear of the tank, to an upper position to encompass the bottom, the sides and the ends of the tank. l l hen so raised a tight lit or joint is made between the tank and the 111o11tl1 ot the vessel by a gasket t l. Various means may be adopted to raise or lower the vessel. 111 the 1resent case it has end legs to, movable in liked guides l. with rack faces is meshing witlrpinioi'is 41.7 on shatts 48 which turn inbeariups l9. These shactt. extend rearward and have bevel gears 50 meshing with complernentary gears 13] on a back shaft 5:3. This shalt has a wheel 5:1 for operating purposes and it may be locked by a bolt i714. to hold the parts a l ter the vessel has been raised to position (Fig. 2) up close to the botto111 of the tank T. This gear mechanism causes an even upward. li'tt at each end of the vessel.

1\.ttaehed to the bottom of the vessel is burner served with fuel by a flexible connection 58.

1.11 the vessel is a chamber 57 having a. separate burner 58.

A cold water supply pipe 60 has a branch 61.. with a ube 62, to chamber 57 and has a line 63, with a valve Get, to a. nozzle for discharging cold fresh water into the tank through a capped hole 67. From the chamber 57 a hot water pipe 738, having a valve 69, extends up and ms a nozzle to supply hot water to the tank. The nozzles are turnable out of the way when not needed to supply water to the tank.

After the vessel has been raised to embrace the tank, cold water is run into the vessel from a pipe 71. It a chilling action is desired the burners are not lighted and cold circulation is accomplished by laiding the 'ater out oi outlet 72, to a re turn pump if desired. For heating or cooking contents of the tank the burners 55 are lighted and the water in the vessel heated to requisite temperature.

The service chamber 57 is heated, as reqnired, to high temperature independently of the ater in the vessel. A safety valve allows for blow oil at a. predetermined n'essure in the high teinperatnre chamber.

To facilitate unloading of the tilted tank (F I provide an apron 78 hinged at T9 to the front lip oi the mouth of the tank. When the tank is to be emptied the apron extci'uled nearly horizontally to the lip oi the tank and the batch or fluid substance run otf oi. the apron.

The invention claimed is:

l. A frame having spaced standards, a mixing tank hung upon and bet-ween the standards and having clearance therefrom at its ends, a water vessel open at its top and disposed between said standards to be moved up around the tank when in up right position; the ends of the vessel moving; up into the clearance, a heating burner attached to the boiler and moving" therewitl'i, and, means for raising and lowering the vessel and the burner.

A. combined mixer and cooker incl11d in; a mixing tank, a water vessel. and means tor raising; the vessel to effective position under the tank; said vessel having a. hot water service chamber provided with a means to serve the mixing tank and having an individual heating burner for the chamlu-ir.

3. A combined mixer and cooker having a tank with a. mixing device, means for operating the device, a water vessel earrying a heating; burner and being arranged under the tank, and means to supply hot water from the vessel to the mixer.

l. A combined mixer and cooker having a horizontally disposed tank with a mixing device, means for oierating the device, av water vessel and a heater therefor, means for supplying hot water from the vessel to the llllXGl, means for moving the vessel to a 1osition up under the mixer tank to make efi ective thereon hot or cold water in the vessel, and means for supplying water to the vessel irrespective of its position.

ANDBEV JACOBSON. 

